GBZ (Update: added homemade safe shutdown)

[joeygbsn]

Here's my GBZ that I built recently. Did mine a little bit differently than most on here. Used the GPIO pins for the button pcb and decided to not use a teensy or a usb hub. I etched the button pcb myself but didn't take any pictures of it and its a little hard to get out now. The battery monitor is just using a picaxe 08m2 to read the battery voltage and light the appropriate light on an rgb led. I taped all but a small rectangle in the case so the light only shines through a portion of the line across the top of the gameboy. This does not shut down the pi, it is just an indicator so I can shut it down before the powerboost cuts the output. Thanks to everyone for all the ideas and knowledge on this forum. Still need to get a screen protector at some point. Here's some pictures:

PicturesShow

Volume and USB.

IMG_20170212_122234.jpg (1.38 MiB) Viewed 9797 times

SD Card.

IMG_20170212_122227.jpg (1.29 MiB) Viewed 9797 times

L and R Buttons.

IMG_20170212_122204.jpg (1.35 MiB) Viewed 9797 times

Battery Monitor.

IMG_20170212_122143.jpg (1.53 MiB) Viewed 9797 times

Finished.

IMG_20170212_122039.jpg (1.44 MiB) Viewed 9797 times

Audio.

IMG_20170212_121132.jpg (1.89 MiB) Viewed 9797 times

Battery Monitor.

IMG_20170212_121015.jpg (1.59 MiB) Viewed 9797 times

Battery Monitor.

IMG_20170212_120959.jpg (1.98 MiB) Viewed 9797 times

Not finished.

IMG_20170112_171655.jpg (2.03 MiB) Viewed 9797 times

[n.marek]

The green LED at the top looks great.

[joeygbsn]

Thanks. It goes solid red when there's around 30 mins left and starts blinking red when there's around 5 mins left on battery. I still have one pin capable of being an output left on the picaxe so i may use it to initiate an auto shutdown when the battery gets really low. A lot of this is just taped in so i can add things if i want.

[joeygbsn]

Recently built a safe shutdown board for my gbz. Works well although it does shut the pi down before its finished blinking its led 10 times, which so far has been fine although i think corruption could still occur. Now that ive got this build with all the features that i would need I'm thinking about making a second gbz with a little more care.

Safe shutdownShow

IMG_20170607_163946.jpg (1.07 MiB) Viewed 9287 times

IMG_20170610_102547.jpg (2.48 MiB) Viewed 9287 times

[megamax510]

how you have maked safe shutdown? can explain for me please?

[joeygbsn]

I designed the board using eagle then used the toner transfer method to transfer my design to the pcb. I then used ferric chloride to etch the pcb. Its kind of a messy process but you can make some decent boards.

[megamax510]

I designed the board using eagle then used the toner transfer method to transfer my design to the pcb. I then used ferric chloride to etch the pcb. Its kind of a messy process but you can make some decent boards.

thanks for the reply. i know how pcb is maded... my question is... what's components you have used for safe s.down? can you send me eagle project? megamax510@gmail.com

very thanks

[tinkerBOY]

The green LED at the top looks great.

I agree! Very nice. I will probably do this myself too for my next build.

[px400]

Hey man, nice project!

I am looking for the schematic of this board since it's almost impossible/too expensive to get the branded safe shutdown board.

Can you share the electronic diagram with us? thanks a lot!

[joeygbsn]

Hey sorry I hadn't planned on releasing my schematics or anything. Making this one was by far more expensive than buying cambles board, I just wanted to do it for the experience. If you're interested in making one i suggest doing a little research on high side switching and doing some prototypes.